Tower for windmills.



No. 64I,250. Patented lan. 9, |900. H. WOODMANSE &. J. AUE.

TOWER FOR WINDMILLS.

(Application led Apr. 24, 1898.|

`(No Model.)

' Nrrnn STATES Farmer Ori-nca.

HARRISON VVOODMANSE AND JOHN AUE, OF FREEPORT, ILLINOIS; SAID AUEASSIGNOR TO SAID WOODMANSE.

TOWER FOR WINDNIILLS.

SPECIFICATION forming part of Letters Patent No. 641,250, dated January9, 1900.

Application filed April 24, 1899. Serial No. 714,244. (No model.)

To @ZZ whom t may concern:

Be it known that We, HARRISON Woon- MANsE and JOHN AUE, citizens of theUnited States, residing at Freeport, in the county of Stephenson andState of Illinois, have invented certain new and useful Improvements inTowers for Windmills, of which the following is a specification.

The object of this invention is to so construct and equipwindmill-towers with bracerods and tighteners that they may beconveniently and securely braced when erected and readily rebraced atany time thereafter; and it consists of certain new and useful featuresof construction and combinations of parts hereinafterfully described,andspecifically pointed out in the claim.

Referring to the accompanying drawings, which form a part of thisspecification, Figure lis a side elevation of a section of aWindmilltower embodying our improvements. Fig. 2 is a side elevation ofabrace-rod and a tightener of the tower in enlarged detail. Fig. 3 is atop plan view of the same. Fig. 4. is a section at the line 4. in Fig. 2of the parts there shown.

Like letters of reference indicate corresponding parts throughout theseveral views.

A are angle-iron corner-posts of the windmill-tower.

B are angle-iron cross-girths securely connecting them together.

C are crossed brace-rods (attached at their opposite ends by means ofbolts or rivets D to adjacent and opposite corner-posts A) drawn tenselyby applying force to their middle portions and forcing them in oppositedirections in a plane parallel to their points of attachment D.

E are tighteners having slots E therein to admit the edge of theangle-iron cross-girth B,

provided with jaws E2 for clamping the crossed brace-rods O when drawntensely, as shown in Fig. 1 securely against the same and furnished withset-screw openings EB therein.

Fare set-screws for securing the tighteners E in position on thecross-girths B.

After the parts of the tower have been put together in the manneralready indicated the brace-rods O are forced simultaneously in oppositedirections until they are as tense as desired and are then secured insuch tense condition to the contiguous cross-girth B. Fig. l shows thebrace-rods O forced outward. They may be forced inward with identicallythe same results. Obviously Whenever it is desired at any time t-oretighten any or all of the brace-rods C it can be done with ease anddespatch.

What we desireto claim and secure by Letters Patent isl In aWindmill-tower, in combination, angleiron corner-posts, angle-ironcross-girths securely connecting them together, crossedbrace-rods--attached by their opposite ends to adjacent and oppositecorner-posts-tensely drawn, by applying force to their middle portionsand forcing them,in opposite directions, in a plane parallel to theirpoints of attachment, and tighteners having slots therein, to admit theedge of the angle-iron cross-girth, and provided with jaws for clampingthe crossed brace-rods to such cross-girth,and setscrews for securingsaid tighteners in position on the cross-girth, substantially as and forthe purpose specified.

HARRISON wooDMANsE. I JOHN AUE.

Witnesses:

W. H. BLossnR, H. J. LENNANN.

